If libmemcached is installed in a non-standard location, use --with-libmemcached-dir=DIR
switch, where DIR is the
libmemcached install prefix. This directory has to contain the
include/libmemcached/memcached.h file.

Zlib is required for compression support. To specify non-standard
installation of Zlib, use --with-zlib-dir=DIR
switch, where DIR is the Zlib
install prefix.

Session handler support is enabled by default. To disable it, use --disable-memcached-session
switch.

SASL authentication support is disabled by default. To enable it, use
--enable-memcached-sasl
switch. This
requires that libsasl2 has been installed and that libmemcached has been
built with SASL support enabled.